Re: Validation Against A Schema With DOM

Question

I tried to redeploy a properly working application using Schema not DTD. It worked perfectly before but after redeployment, I got this an error complaining of missing "AbstractDOMParser". I downloaded this jar "xercesImpl.jar" which contain "AbstractDOMParser" . The error is gone away. However, a new error popped up as following. Remember, I don't encounter any problem like this before redeployment.
Recoverable Error: Document is invalid: no grammar found. ( Check line number:2, column:7)
Recoverable Error: Document root element "rules", must match DOCTYPE root "null". ( Check line number:2, column:7)
My guess is that I downloaded the wrong Parser. I need a parser for Schema not DTD. Where can I download the parser for Schema (not DTD parser)? any other potential factors, which you all can think of ,caused this error? Any input I really appreciate.
Here is my XML:
<?xml version="1.0" encoding="UTF-8"?>
<rules xsi:noNamespaceSchemaLocation="/SUNWappserver7/domains/domain1/applications/j2ee-modules/olbr_1/WEB-INF/classes/schemas/ezgov_bre.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<rules-package name="Navigation">
<rule-script name="GetNextNavigationId">
# initialize values
navId = ""
if (NavigationControllerDataSetName_navigationControllerCurrentNavigationId != N
one):
navId = NavigationControllerDataSetName_navigationControllerCurrentNavigatio
nId.lower()
newNavId = ""
if (NavigationControllerDataSetName_navigationControllerNavigationId != None):
newNavId = NavigationControllerDataSetName_navigationControllerNavigationId.
lower()
action = ""
Thanks in advance,
Van

Answer 1

Set the parser as a schema validating parser.
parser.setFeature("http://xml.org/sax/features/validation",
                  true);Set the validation/schema feature to true to report validation errors against a schema.
parser.setFeature("http://apache.org/xml/features/validation/schema",
                  true);Set the validation/schema-full-checking feature to true to enable full schema, grammar-constraint checking.
parser.setFeature("http://apache.org/xml/features/validation/schema-full-checking",
                  true);